Top Medical Multi-task Chair with Chrome Base 19" - 24" - Granny Smith Vinyl - Chrome Casters 15 Year Warranty - Lifetime on Cylinder - 5 Year Upholstery Height: Desk Height 19"-24". Adjustment system allows you to adjust the height from a seated position. Height measured from the top of the seat to the floor. Back: Adjustable back rest adjusts four-ways: up, down, forward & back with lumbar support for better comfort during extended sitting durations. Width 15 ", Height 11 ", Thickness 2 ". Seat: Ergonomically contoured waterfall cushion. Depth 18", Thickness 2 ", Width 19". Base: Durable 5-leg high polished 24" aluminum base. Casters: Comes with standard chrome hooded rolling, non-marring casters (suitable for both hard and carpeted floors). 50 Vinyl and 5 Fabric colors available. Vinyl: Highly durable molded polyurethane foam cushioning covered with fully washable antibacterial/antimicrobial vinyl. Our upholstered vinyl chairs are protected by an industrial strength stain resistant finish. Exceeds ANSI / BIFMA standards. Weight capacity: 300 lbs. Made in the U.S.A.